16839654943 has 2 divisors, whose sum is σ = 16839654944. Its totient is φ = 16839654942.

The previous prime is 16839654941. The next prime is 16839654959. The reversal of 16839654943 is 34945693861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16839654943 - 2¹ = 16839654941 is a prime.

Together with 16839654941, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16839654941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8419827471 + 8419827472.

It is an arithmetic number, because the mean of its divisors is an integer number (8419827472).

Almost surely, 2^16839654943 is an apocalyptic number.

16839654943 is a deficient number, since it is larger than the sum of its proper divisors (1).

16839654943 is an equidigital number, since it uses as much as digits as its factorization.

16839654943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16796160, while the sum is 58.

The spelling of 16839654943 in words is "sixteen billion, eight hundred thirty-nine million, six hundred fifty-four thousand, nine hundred forty-three".